Protector for a dispensing device for liquid products retained under pressure in a container



Sept. 22, 1953 J. HENCHERT 2,653,053

PROTECTOR FOR A DISPENSING DEVICE FOR LIQUID PRODUCTS RETAINED UNDERPRESSURE IN A CONTAINER Filed July 13, 1950 INVENTOR. zzfienc/zeri,

BY rum, arawm mmz Patented Sept. 22, 1953 PROTECTOR FOR A DISPENSINGDEVICE FOR LIQUID PRODUCTS RETAINED UNDER PRESSURE IN A CONTAINER JohnHcnchert, Chicago, Ill., assignor to Continental Can Company, Inc., NewYork, N. Y., a

corporation of New York Application July 13, 1950, Serial No. 173,646

1 Claim. 1

The invention relates to new and useful improvements in a protector fora dispensing device for liquid products retained under pressure in acontainer. In my copending application Serial No. 39,525 filed July 19,1948, now Patent No. 2,623,785, there is shown a dispensing containerfor products of the above type wherein the valve is opened fordispensing purposes by pressure applied to a flexible disk forming apart of one of the walls of the valve body. The disk is exposed and ifpressure is accidentally applied thereto, the valve will be opened andthe product dispensed until the disk is released or the pressure withinthe container is exhausted.

An object of the present invention is to provide a protective meanspermanently secured to the container and covering the flexible disk toprevent pressure from being accidentally applied thereto whichprotective means includes a removable member overlying the flexible diskand dispensing nozzle for giving access thereto for dispensing purposes.

A further object of the invention is to provide a protective means for adispensing container of the above type which includes a memberconforming in shape to the outer face of the container end andpermanently attached to the end seam, which member has a central openingsurrounded by an upstanding neck within which is disposed the valve bodyand flexible disk, said protective means also including a cover memberpivotally attached to the neck and overlying the disk for giving accessthereto for dispensing purposes.

In the drawings, which show by way of illustration one embodiment of theinvention:

Figure 1 is a vertical sectional view of a dispensing container with theimproved protective means applied thereto;

Figure 2 is a plan view of the same;

Figure 3 is a vertical sectional view through the valve body showing thearrangement of the flexible disk which opens the valve when pressure isapplied thereto;

Figure 4 is a plan view of the cover member and the hinging meansassociated therewith detached from the container.

The container to which the invention is applied includes a body portionI, an end portion 2 secured to the body portion by a double seam 3 ofthe usual construction. This end portion 2 is concave as viewed from theoutside of the container. At the center thereof is an opening andattached to the container end at said opening is a valve body 4. Thevalve body has an opening extending from the lower end thereof to theupper end and a partition member 5 separates this opening into twochambers, an upper and a lower chamber. A nozzle 6 is attached to thevalve body and has an opening leading to the upper chamber. The upperside of the upper chamber is closed by a flexible disk I secured theretoby a ring member 8 carrying the nozzle 6.

At the lower side of the partition 5 is a valve seat 9 with which avalve it! makes contact. Within the lower chamber is a rod H surroundedby a spring i2 which is placed under tension and operates to hold thevalve normally closed. Within the upper chamber is a stem it havin aflat head I4 which lies close to the inner surface of the flexibledisk 1. When pressure is applied to the disk the valve will be openedand the product under pressure from the container will flow into theupper chamber and be dis- Densed through the opening in the nozzle. Fora further detailed description of the dispensing device reference may bemade to the copending application supra.

The specific features of the dispensing nozzle form no part of thepresent invention. The broad features, however, of a dispensing devicehaving a valve which is opened by finger pressure applied to a flexibledisk forming a wall of the valve body does have an important bearing onthe present invention which relates to a protective means permanentlysecured to the container and covering this flexible disk to preventaccidental pressure being applied thereto. This protective meansincludes a member I5 which is shaped to conform to the outer surface ofthe container end 2; said member I5 extends over the end seam asindicated at 16 and is provided with a depending flange I! which isadapted to be turned underneath the end seam for permanently attachingthis member IE to the container. The member I5 has a relatively largecentral opening surrounded by an upstanding neck [8 which is rolledoutwardly into a hollow bead 19. When this member I5 is attached to thecontainer the valve body 4 and the flexible operating disk 71 aredisposed within this neck portion. These parts are preferablydimensioned so that the flexible disk lies slightly below the planepassing tangentially across the upper extreme of the end seam.Associated with this member I5 is a cover member 2!} which has adepression in the outer face thereof forming a friction wall 2! which isadapted to engage within the neck Hi.

The central portion of the cover extends inwardly and upwardly and thecentral portion is domed as indicated at 22 so as to overlie theflexible disk I. The flange of the cover is turned underneath asindicated at 23 for the purpose of strengthening the cover. At one sideof the cover there is a projecting portion 24 which is rolled into abead and is adapted to receive a bracket member 25. The bracket member25 extends straight through the rolled bead 24 and is provided with arms26, 26 having the ends thereof 21, 2'! turned outwardly. These arms areadapted to embrace the neck portion of the member i and thus the coveris attached to the neck portion so that it may sWing on the pintleportion 28 of the bracket member 25. When the cover is in closedposition as shown in Figure 1, it will be retained in this position bythe friction wall 21 engaging the inner surface of the neck It. In thisclosed position the domed portion 22 of the cover is spaced slightlyaway from the flexible disk 1.

The cover is made of comparatively heavy metal so that if there isaccidental contact with the cover it will not spring so as to flex thedisk and open the valve. The cover is likewise slightly below a planetangential to the end seam so that one can can be stacked on anotherwithout pressure being applied to the cover.

A dispensing container with this protective means applied thereto can bepacked in a handbag 01' packed for shipment and may be stored withoutfear of the flexible disk being accidentally pressed upon so as to openthe valve and bring about undesirable dispensing of the liquid contentstherein. When it is desired to use the container for dispensing theliquid therein the hinged cover is swung on its pintle to open posi- 4tion and this gives ready access to the flexible disk and the nozzle sothat dispensing can be accomplished as desired.

It is obvious that minor changes in the details of construction and thearrangement of parts may be made without departing from the spirit ofthe invention, as set forth in the appended claim.

I claim:

A dispensing device for liquid products retained under pressure in acontainer comprising a valve body, a dispensing nozzle carried thereby,a valve, a flexible disk forming a wall of the valve body, deviceswithin the valve body operated by pressure applied to the disk foropening the valve, and a protective means permanently secured to saidcontainer and covering said disk to prevent accidental pressure thereon,said protective means including a member conforming in shape to theouter face of the container end and permanently attached to the endseam, said member having a central opening surrounded by an upstandingneck within which is disposed said valve body and flexible disk and acover member pivotally attached to said neck and overlying the disk forgiving access thereto for dispensing purposes.

JOHN HENCHERT.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,657,562 Ballou Jan. 31, 1928 1,800,156 Rotheim Apr. 7, 19312,080,728 MacNeill et a1. May 18, 1937

